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* improve ldr*/str* handling for arm thumb

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git-svn-id: trunk@28583 -
This commit is contained in:
florian 2014-09-02 19:37:45 +00:00
parent 9991ee4165
commit 3f71b059e5
1 changed files with 16 additions and 16 deletions
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32
compiler/arm/cgcpu.pas
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@ -4057,30 +4057,30 @@ unit cgcpu;
tmpreg : TRegister;
begin
href:=ref;
if (op in [A_STR,A_STRB,A_STRH]) and
(abs(ref.offset)>124) then
begin
tmpreg:=getintregister(list,OS_ADDR);
a_loadaddr_ref_reg(list,ref,tmpreg);
reference_reset_base(href,tmpreg,0,ref.alignment);
end
else if ((op=A_LDR) and (oppostfix in [PF_None]) and
(ref.base<>NR_STACK_POINTER_REG) and
(abs(ref.offset)>124)) or
{ LDRB limitations }
if { LDR/STR limitations }
(
(((op=A_LDR) and (oppostfix=PF_B)) or
((op=A_LDRB) and (oppostfix=PF_None))) and
(((op=A_LDR) and (oppostfix=PF_None)) or
((op=A_STR) and (oppostfix=PF_None))) and
(ref.base<>NR_STACK_POINTER_REG) and
(abs(ref.offset)>124)
) or
{ LDRB/STRB limitations }
(
(((op=A_LDR) and (oppostfix=PF_B)) or
((op=A_LDRB) and (oppostfix=PF_None)) or
((op=A_STR) and (oppostfix=PF_B)) or
((op=A_STRB) and (oppostfix=PF_None))) and
((ref.base=NR_STACK_POINTER_REG) or
(ref.index=NR_STACK_POINTER_REG) or
(abs(ref.offset)>31)
)
) or
{ LDRH limitations }
{ LDRH/STRH limitations }
(
(((op=A_LDR) and (oppostfix=PF_H)) or
((op=A_LDRH) and (oppostfix=PF_None))) and
((op=A_LDRH) and (oppostfix=PF_None)) or
((op=A_STR) and (oppostfix=PF_H)) or
((op=A_STRH) and (oppostfix=PF_None))) and
((ref.base=NR_STACK_POINTER_REG) or
(ref.index=NR_STACK_POINTER_REG) or
(abs(ref.offset)>62) or